Locking means for guide bushings



Aug. m, i923.

C). R. BRENEY LOCKING MEANS FOR GUIDE BUSEINGS iled March 9. 3392i l? f Fig. l.

.25 bears against the projection 2e when the has the collar 23 which may, conven iently, he machined to the dot and dash lines shown and then have a portion thereof out away to leave the proection 2d. The slip bushing G has the colar 25-eccentric with the body 26 and also has an inclined outer circumference 27 similar to the collar ln this instance7 the collar apparatus is in locked. position.

The eccentricity, modev of operation, and other features not particularly ointed out here are similar to those describe in connection With Figs. 1 and 2.

Referring now to Figs. 7 and 8 which show another modification. This device consists of the liner bushing H and the slip bushing J. The bushing H has the flange 28 pro; vided with a hole-into which the shouldered pin 29 .is riveted in proper relation to the central bore 30. The bushing ,l has the eccentric collar 3l with inclined circumference. The pin 29 has-the inclined ilat' face 32 adapted to the inclination of the collar 3l. The eccentricity7 mode olf operation,` and other features not particularly pointed outA here are similary to those described in connection with Figs. l and 2.

' This device, as Well as the one shown in Figs. 5 and 6 are somewhat cheaper to mannu facture `than those previously shown.

' Figs. 5 and 6, the counterbore in the collar '23 need not heV eccentric which 'feature is somewhat cheaper to manufacture but en additional operation is required to remove the material of the cut away portion. The device shovvn in Figs. 7 and 8 is somewhat leica-lei cheaper to manufacture than the former ones since the counterbore is eliminated and it is not necessary to remove any material as in Figs. 5 and 6. But this device is not quite as strong es the former ones and will answer the purpose in many instances where strength is not necessary.

The devices herein described and illustrated are economical of manufacture; positive oi operation; simple of construction; nothing to ret out of order; need no accessory locking member; lock right or left handed or longitudinally orboth; and a member rotating inside of these devices will, lent rather tighten thetric collar on the end of this body and vthe outer circumferential surface of this collar inclined, and a! liner bushing composed of a body and means on the end of this body to engage the inclined surface of said ecntric collar by a rotative movement of said slip bushing and hind said slip bushing by both endwise and lateral pressure. l

3. A guide bushing comprising, a liner loushingg provided with an eccentric counterbore having an inclined circumferential wall, and :i slip bushing provided with an eccentric collar having an inclined surface to engage said inclined Wall by a rotative movement of said slip 1bushing; and bind said slip hashing icy both endiviseand lateral pressure.

y orne Le. earner. 

